Improvement in corn-planters



B. L. PRIME. CORN PLANTER.

No, 18,768. Patented Dec. 1,1857

UNITED STATES PATENT OFFICE.

BRADLEY L. PRIME, OF HAMLTOIL-OHIO.

1 M PROVE-Meter c'oaN-PLANTERS.

Toall whom it may concern:

Be it known that I, BRADLEY LOCK PRIME, of Hamilton, in the county of Butler and State of Ohio, have -invented a new and useful Improvement in Corn-Planters; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings,forming part of this specitication, in which- Figure 1 is a top view of the machine with portion of hopper broken away to show depositing-tube. Fig. 2 is a vertical section on x Fig. 3 is a rear view of a portion of hop- `pers, showing furrow openers and coverer. Fig. t is a View of lever operating seed-slide. Fig. '5 is a lface view of cam-wheel Aoperating seed'- slide.

`Similar' characters of reference in the several 'figures denote thesame part.

The nature of my invention consists in an y*elastic construction o f the partitions of the seed-chambers under which the cavities of the seed-slide pass, and in a peculiar formation of the cam-wheel actuating the feed-slide for insuring the proper filling ofthe aforesaid caviber, C, at top, extending the entire length,

the licor a of this chamber having openings over the lower compartments, B, contained between partitions b c, for the admission of the grain to the cells of the feed-slide D.. The partitions o are over the openings d in the hopper-bottom e, leading to the dischargetubes f. These partitions are held in their proper position by spiral springs g, around rods It, attached to said partitions and passing through openings in partitions b, so that the partitions c will yield to pressure, and will on the removal of the pressure resume their proper position over openings d. It should here be stated that partitions b are fixed, and that tioor a will not permit the entrance of grain into the chambers containing the spiral springs g.

Specification forming part of LettersfPatent No.` 18,768, dated December 1', 1857.

the wheel having a small roller, l. A spring,

s, attached to slide D, moves the slide in the opposite direction from that indicated by arrow and keeps the roller l in contact with the face of wheel'E. The springs is attached by one extremity to a shaft, whose head is shown at q, so 'that the strength of the spring may be graduated, as indicated in Fig. 3. The wheel E is rotated from the wheel W by gearing-connection F Gr. On theshaft of this cam-wheel Eis a pulley, I, having a band-con.- nection with a pulleyy attached to cam, "J, which regulates the opening and closing of 'a valve, c, at the lower extremity ot' .dischargetube f, as shown in Fig. 1.

P is the drag-bar, having opener o and coverer o.

The operation of in y improvement is as follows The projections an' a, by slightly moving the slide D before its cavityis carried under partition c, serve to settle thegrain-in the cavity and insure proper filling thereof. As the cavity passes under partition c under the action of projection m upon lever k it will carry its contents to discharge-opening d; butin event of a packing of the grain in the cavity to such an extent that the motion of the slide would be stopped or the grain cut the parttion c will be carried in direction of the motion of the slide and the contents of the cavity dropped through opening d, the partition resuming its place by force of spring g. Moreover, it frequently happens that the corn bc comes jammed between the partition and the grain-cavity before the cavity reaches the partition. In this case the partition yields, and the shake given by the small projection on wheel E settles the grainin the cavity and the' partition resumes its place` It will thus be seen that the action of my construction is to insure the lling ofthe graincavities and obviate all jamming andbreaking ofthe grain.

Having thus described 'my invention andv In testimonywhereoflhavebereunto signed the operation thereof, I claimfmy name before two subscribing witnesses.

The yielding partitions c of the hopper, constructed, arranged, -and operating suiistsan-` BRADLEY LOOK PRIME.

tially :is and. for the purpose set forth, in com'- v bnation with the secondary projections n n" Witnesses:

n of the cam-wheel E, the whole 'operatingV BELKIN, as hereinbefore described. S. CRANE. 

